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Colour stability of coker gas oil has been improved by DMF extraction.
以二甲基亚砜为萃取溶剂,用溶剂萃取的方法提高焦化柴油的颜色安定性.
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The coker gas oil was refined by benzyl alcohol extraction.
以苄醇为溶剂,用萃取方法提高了焦化柴油的质量.
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